diff --git a/app/main.py b/app/main.py
index 7e007dd..d7651ee 100644
--- a/app/main.py
+++ b/app/main.py
@@ -14,6 +14,9 @@ GEOLITE2_ASN_DB = '/usr/local/share/GeoIP/GeoLite2-ASN.mmdb'
 GEOLITE2_CITY_DB = '/usr/local/share/GeoIP/GeoLite2-City.mmdb'
 
 class IPAddressParam(BaseModel):
+    '''
+    Payload entry as used in POST
+    '''
     ip: Union[IPv6Address,IPv4Address]
 
 class Locality(BaseModel):
@@ -39,6 +42,9 @@ class GeoLocation(BaseModel):
 async def root_post(ipaddresses: Annotated[list[IPAddressParam],
                                     Body(title="The IPAddresses to geolocate")]
                ) -> list[GeoLocation]:
+    '''
+    Return GeoLocation item(s) for a list of IPAddressParam objects
+    '''
     geolocations = []
     with (geoip2.database.Reader(GEOLITE2_ASN_DB) as reader_asn,
             geoip2.database.Reader(GEOLITE2_CITY_DB) as reader_city):